Difference between revisions of "VTube Overbend Calculations for Springback"

The Overbend Calculator is a built-in feature VTube-STEP and VTube-LASER that can calculate the fixed and proportional springback values to be included in the Part Setup menu.

These values have an effect the final bend angles when sending new data to the bender, and when making corrections to the bender.

STEP 1

Right click anywhere in the Part Setup menu and click on Overbend Calculator in the popup menu.

STEP 2

Make a part with two test bends. Typically they are 20 and 120 degrees. The bender is set to bend these angles and a test tube is bent.

STEP 3

The actual resulting bend angles are measured and entered into the Overbend Calculator.

If you're using VTube-LASER connected to a FARO measuring center, then you can measure a test part, then copy the measured angles into the Overbend calculator.

STEP 4

The proportional and fixed values are calculated and used in a springback formula to overcome springback at any angle by calculating the overbend angles.

Press the Calculate button to calculate the values.


After you have calculated the values, you can choose one of these actions...

• Save the values to Part Setup and close the window.
  
  
• Add the values to the end of the Springback table and close the window.
  
  
• Do both and close the window.
  
  
• Or just Cancel and close the window.

STEP 6

Press the "Save to Part Setup" button. The values will now be displayed at the bottom of the Part Setup menu.

These two calculated values will be used to calculate overbend to overcome springback when sending data to the bender in the BEND SETUP page in VTube-LASER. This image shows a button inside the Bender Setup menu in VTube-LASER.